声速测量及不确定度分析  

Sound Velocity Measurement and Uncertainty Analysis

作　　者：刘石劬[1] 

机构地区：[1]东南大学,江苏南京211189

出　　处：《大学物理实验》2013年第4期99-103,共5页Physical Experiment of College

摘　　要：介绍了分别用共振干涉(驻波)法、相位比较法和时差法测量声速的原理、实验装置及实验结果,同时对实验结果进行了比较,通过不确定度及其来源分析,得出几种方法的相对误差和不确定度关系。The principles,experimental setups and results of measuring sound velocity,including the resonance coherent method,phase comparative method and time difference method,are presented.Also,the comparison and analysis of experimental results are discussed.The relations between the relative error and uncertainty of the three methods are obtained.

关 键 词：声速 共振干涉(驻波)法 相位比较法 时差法 不确定度分析 

分 类 号：O4[理学—物理]